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Geosciences, Volume 8, Issue 12

December 2018 - 71 articles

Cover Story: In March 2012, Tagoro, the most recently discovered shallow submarine volcano on the Canary Islands, Spain, became an active hydrothermal system involving a release of heat and gases that produce significant physical–chemical anomalies in the surrounding waters. Our results highlight that the hydrothermal system exhibited stationary cyclic degassing behavior with a strong peak of a 140-min period centered on a significant interval of 130–170 min at 99.9% confidence. Moreover, important physical–chemical anomalies are still present in the interior of the main crater, such as (i) a thermal increase of +2.55 °C, (ii) a salinity decrease of -1.02, (iii) a density decrease of -1.43 (kg∙m−3), and (iv) a pH decrease of -1.25 units. This confirms that, five years after its origin, the submarine volcano Tagoro is still actively in a degassing phase. View this paper
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Articles (71)

  • Article
  • Open Access
1 Citations
4,824 Views
16 Pages

18 December 2018

Sparse spikes deconvolution is one of the oldest inverse problems, which is a stylized version of recovery in seismic imaging. The goal of sparse spike deconvolution is to recover an approximation of a given noisy measurement T = W ∗ r +...

  • Review
  • Open Access
15 Citations
11,312 Views
34 Pages

18 December 2018

Volatile-bearing lunar surface and interior, giant magmatic-intrusion-laden near and far side, globally distributed layer of purest anorthosite (PAN) and discovery of Mg-Spinel anorthosite, a new rock type, represent just a sample of the brand new pe...

  • Editorial
  • Open Access
2,973 Views
6 Pages

17 December 2018

The geochemical equilibrium in seawater must be observed taking into account the chemical and geological, as well as biological, processes. The concept of equilibrium takes into account the composition of the system and the kinetics of the reactions...

  • Article
  • Open Access
156 Citations
20,495 Views
23 Pages

A Comparative Study of the AHP and TOPSIS Techniques for Dam Site Selection Using GIS: A Case Study of Sistan and Baluchestan Province, Iran

  • Ali Jozaghi,
  • Babak Alizadeh,
  • Mohsen Hatami,
  • Ian Flood,
  • Mohammad Khorrami,
  • Nastaran Khodaei and
  • Erfan Ghasemi Tousi

17 December 2018

The application of multiple criteria decision-making (MCDM) techniques in real-life problems has increased in recent years. The need to build advanced decision models with higher capabilities that can support decision-making in a broad spectrum of ap...

  • Article
  • Open Access
5,744 Views
33 Pages

17 December 2018

Microbial populations involved in forming the distinctive precipitates of S, Fe, Mn, and Ca in the San Diego River watershed reflect an interplay between the mineralogy of the rocks in the watershed, sparse rainfall, ground- and surface-water anoxia,...

  • Review
  • Open Access
24 Citations
10,913 Views
17 Pages

17 December 2018

The Abadan Plain Basin is located in the Middle East region which is host to some of the world’s largest oil and gas fields around the Persian Gulf. This basin is a foredeep basin to the southwest of the Zagros Fold-Thrust-Belt, bounded along i...

  • Article
  • Open Access
19 Citations
4,779 Views
21 Pages

Landscape Dynamics in the Caspian Lowlands Since the Last Deglaciation Reconstructed From the Pedosedimentary Sequence of Srednaya Akhtuba, Southern Russia

  • Marina Lebedeva,
  • Alexander Makeev,
  • Alexey Rusakov,
  • Tatiana Romanis,
  • Tamara Yanina,
  • Redzhep Kurbanov,
  • Pavel Kust and
  • Evgeniy Varlamov

16 December 2018

Surface Kastanozem of the Lower Volga area was first studied as a part of the pedocomplex, with the lower part (148–160 cm) formed in Early Khvalynian Chocolate clays (13–15 ka), the middle part (100–148 cm) in a mixed clay-loess se...

  • Article
  • Open Access
1 Citations
3,732 Views
16 Pages

15 December 2018

The risk of CO2 leakage from damaged wellbore is identified as a critical issue for the feasibility and environmental acceptance of CO2 underground storage. For instance, Portland cement can be altered if flow of CO2-rich water occurs in hydraulic di...

  • Article
  • Open Access
6 Citations
7,226 Views
20 Pages

15 December 2018

Recent developments in the availability of very high-resolution satellite imagery through platforms like GoogleEarth (Google, Santa Clara County, CA, USA) and Bing Maps (Microsoft, Redmond, WA, USA) have greatly opened up the possibilities of their u...

  • Article
  • Open Access
16 Citations
7,936 Views
14 Pages

Sequestering Atmospheric CO2 Inorganically: A Solution for Malaysia’s CO2 Emission

  • M. Ehsan Jorat,
  • Maniruzzaman A. Aziz,
  • Aminaton Marto,
  • Nabilah Zaini,
  • Siti Norafida Jusoh and
  • David A.C. Manning

14 December 2018

Malaysia is anticipating an increase of 68.86% in CO2 emission in 2020, compared with the 2000 baseline, reaching 285.73 million tonnes. A major contributor to Malaysia’s CO2 emissions is coal-fired electricity power plants, responsible for 43....

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Geosciences - ISSN 2076-3263